Question about Line 6 Spider Iii 15 Modeling Guitar Amplifier 15 Watt

1 Answer

Low hum in line 6 amp

Hum begins after a few minutes warm up.  Sometimes will go away with slight tap to the underside of the components section.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 4 Answers

Hi ! Check the pc board for cold solderings , usualy looks grayish , and resolder . ( Probebly in the power supply )

Good luck , Stefan from Sweden

Posted on Jan 05, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I left my fender frontman 65r on for over a year and yesterday a gentle hum for a few seconds then a loud hum for a few seconds more then no more power to the unit. I opened it and troubleshooted it around...


Why was it on for over a year :D Has anyone replaced the fuse? In the service manual I found it has to be only 2 Amps! Okay let's solve the problem. The power transformer was overloaded which caused the broken winding. It is still overloaded what can be heard by the hum sound. First thought was to check main capacitors or better just replace them! If the hum gets louder, they might also become warm. Check voltages after bridge rectifier and smoothing circuit. They should be +/-42 V (TP3, TP4) and +/- 16 V (TP5, TP6) Let me know which of them is faulty Cheers

Feb 11, 2013 | Fender Frontman 65R 65W 1x12 Guitar Combo...

1 Answer

I have a roland kc 150 65w amp that begins humming the moment i turn it on. its a normal low frequency hum. nothing is plugged into it, and when i ajust the volume knobs it does not effect the sound. How...


First thing is to determine if sound is from the speaker or possibly the cabinet. If from the cabinet it is likely the power transformer is vibrating the chassis. This sometimes can be cured by adjusting the mounting bolts.
If the sound is from the speaker, then an electronic "cure" is needed. Please note that a very quiet hum is normal but if you can hear it 5 foot away, that is un-normal.

The hum would probably be due to failing component in the power supply. Unles you are adept at electronic repair, best to take it in for servicing.

Feb 25, 2011 | Roland Kc-150 65-watt Keyboard Amplifier...

1 Answer

There is an increased humming when i turn on my amp


If most of the humming goes away when you unplug the cable from it, the amp is OK and it may be either a poor guitar cable or more likely hum pickup by the pickups on the guitar. If you move the guitar around and near the amp you likely will notice incread hum from the magnetic fields from the amp or other devices as well.

Jan 11, 2011 | Fender Super Champ XD Guitar Combo Amp

2 Answers

Is it possible to completely cut out earth hum on a guitar in a home environment. Or is a little bit of hum always gonna be present<


The key is to keep the guitar away from magnetic fields. Transformers in amps are a common source. You could use a graphic equalizer to "notch" out the power line frequency. Make sure your amp isn't the source of the hum by unplugging guitar cable. Then make sure the guitar cable is good by plugging it in and shorting the open end. Then plug into the guitar to check.

You may find your cable is sub-standard, or you MAY have to set yourself up to use balanced connections if your guitar has XLR output connector.

Sometimes the grounding of the conductive paint in the electronics well of the guitar gets ungrounded... check that using an ohmmeter.

Nov 16, 2010 | Fender Limited Edition Mustang...

2 Answers

Well i dont have a les paul studio i have a les paul menace with the same problem. Hopefully you can still help me. When i plug the guitar in and turn the volume up on the guitar a loud hum appears. ...


OK... Most of the guitars have a PAINTED on shielding in the well with the electronics. Sometimes the electrical connection to this is broken causing hum. Sometimes the connection is by way of the potentiometer shaft nuts and they spin and break the connection. This paint is conductive and often black know as aquadag. Use an ohmeter to verify connection.

Oct 27, 2010 | Gibson Les Paul Studio Electric Guitar

1 Answer

Just got my fender 63 reverb reissue unit...and when i switch it on all i get is a loud buzzing hum type sound .


If you unplug the guitar cable and STILL get the hum, the unit has a defect... return under warranty.

If the hum goes away when you unplug the cable, replace the cable and see if new cable fixes the problem. If it does, the cable has a bad shield.

If the cable didn't cure it, then the guitar has a defect. Remember that some guitar pickups are sensitive to the magnetic fields from the amps... only cure is to either use humbucker types or be a distance away from the amp.

Jun 29, 2010 | Fender '63 Reverb

1 Answer

Yamaha dtxpress humming low sound in headphones and amp.


Likely a filter capacitor in power supply is failing if it has started doing this. SOMETIMES devices have a very small amount of hum normally. Also sometimes unbalanced instrument cables can pick up hum.

Feb 11, 2010 | Yamaha Musical Instruments

1 Answer

Hi My line 6 spider 111 30 has a problem The amp will switch on but there are no light showing and no sound, there is power to the amp as it will hum slightly when switched on


The hum MIGHT be directely from teh power transformer vibrating the chassis RATHER than via the speaker. This is an important detail to investigate.

Jan 14, 2010 | Line 6 Spider Iii 30

1 Answer

Peavey 115 Low hum Low volume from input


The preamp section has a problem. It could be anything in the preamp but is OFTEN the input jack itself. They take a lot of abuse.

Also the insert jack contacts that forward the preamp to the power amp if no external FX are used can go bad.

Additional things are circuit board cracks caused by rough handling and also controls that have had the knobs mashed in which can destroy the potentiometers they are connected to.

Sep 19, 2009 | Peavey Musical Instruments

1 Answer

I have a spider III 15W amp that has worked for a year. plugged in last night and it's getting power but no sound. Not even a hum from the speaker. checked everything and it's definitely the amp....


Try disconnecting the speaker from the amp with the amp unplugged from your power. Never work on an amp when its plugged in unless you know how dangerous it is. Check for resistance across the speaker terminals with a volt ohm meter to see if you have a blown speaker. Thats the first thing to look for. You should here a hiss or a low hum when your amp is on and you plug a guitar cord into the input without the guitar. Check those two things first.

Jul 15, 2009 | Line 6 Spider Iii 15 Modeling Guitar...

Not finding what you are looking for?
Line 6 Spider Iii 15 Modeling Guitar Amplifier 15 Watt Logo

Related Topics:

214 people viewed this question

Ask a Question

Usually answered in minutes!

Top Line 6 Musical Instruments Experts

Larry Stiles
Larry Stiles

Level 2 Expert

286 Answers

Iron
Iron

Level 3 Expert

3018 Answers

Len Jeffrey

Level 2 Expert

89 Answers

Are you a Line 6 Musical Instrument Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...